{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["else", "organization", "person", "location"], "input": "One elderly man , who declined to give his name , said two of his sons were now refugees in Moscow and the other two had left to fight for the opposition ."}
{"else": [], "organization": [], "person": [], "location": ["Moscow"]}